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Fuel Systems. Mr. Lombardi, Selig, Moffre. The Purpose of A Fuel System. The purpose of the fuel system is to supply an exact amount of fuel for the engine to burn. Without this essential system, a car wouldn’t be able to run. Basic Parts of A Fuel System. Fuel tank Fuel line Fuel filter

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Fuel systems

Fuel Systems

Mr. Lombardi, Selig, Moffre


The Purpose of A Fuel System

  • The purpose of the fuel system is to supply an exact amount of fuel for the engine to burn.

  • Without this essential system, a car wouldn’t be able to run.


Basic parts of a fuel system
Basic Parts of A Fuel System

  • Fuel tank

  • Fuel line

  • Fuel filter

  • Fuel pump

  • Fuel injection system

Air Cleaner


Fuel tank
Fuel Tank

  • Usually two pieces of steel, welded together to form a container

  • Can also be made of plastic.

  • It will have a fuel pickup in the deepest part

  • Filler neck

  • Vent to allow air back in

  • Gauge

  • Fuel pump


Fuel lines
Fuel Lines

  • A fuel line is ahose used to bring fuel from storage tank to the distribution center. (Carb/Injectors)

  • Commonly made of steel or high density plastic.


Fuel filter
Fuel Filter

  • Screens out dirt and rust particles from the fuel, normally made into cartridges containing a filter paper.


Fuel pump
Fuel Pump

Fuel has to be pumped from the fuel tank to the engine under low pressure to the carburetor or high pressure to the fuel injection system.


Fuel delivery
Fuel Delivery

  • Carburetor

  • Fuel Injection


Carburetors
Carburetors

  • TWO JOBS

    • to mix the air and fuel

    • control the speed of the engine.


Fuel Injection

  • Fuel Injector squirts fine mist of fuel into the combustion chambers of the engine.

  • A computer controls the system, monitoring necessary factors (load/RPM).


Diesel fuel injection
Diesel Fuel Injection

  • Fuel injection “Timing” is critical


Fuels
Fuels

  • Come from Refined Crude Oil

  • Organic Compounds

    • Gasoline

    • Diesel

    • Alt Fuels


Gasoline
Gasoline

  • Aliphatic hydrocarbon.

  • Hydrogen and Carbon arranged in chains


Octane
Octane

  • 8 Carbons chained together

  • Adds length to Gas chain

  • Knock deterrent - resistance of the fuel to self-igniting


Diesel
Diesel

  • Similar to Gasoline (Carbon chain)

  • Much longer (more energy)


Alt fuels
Alt. Fuels

  • Ethanol

  • LP

  • CNG

  • Bio Diesel


Ethanol
Ethanol

  • High Octane

  • Clean burning

  • American-made

  • Renewable fuel

  • $$$$ Distill

  • Energy Neutral


Propane injection system
Propane Injection System

  • Requires another complete fuel system

    • average loss of 5 to 10% in miles per gallon

    • 104 octane rating

    • domestically produced fuel

    • 70 % less hydrocarbons (smog)

    • 50 % less carbon monoxide

    • 20 % less NOx

    • 18-20 % less CO2


CNG

  • Similar to LP

  • Refueling Station more $$$$

  • 40 % cheaper than Gas


Biodeisel
BioDeisel

  • Mixed with Petroleum Diesel Fuel

  • Long chain fatty acids derived from vegetable oils or animal fats

  • Made from agricultural co-products and byproducts

    • soybean oil

    • natural oils

    • Greases



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